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Stock-Based Compensation Plans (Stock Option Activity) (Details) - $ / shares
 12 Months Ended
Aug. 29, 2015
Aug. 30, 2014
Aug. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding at beginning of year, Shares 457,421 664,994 727,664
Options granted, Shares 0 0 0
Options exercised, Shares 0 (77,833) (4,000)
Options canceled, Shares (290,027) (129,740) (58,670)
Outstanding at end of year, Shares 167,394 457,421 664,994
Exercisable at end of year, Shares 167,394 457,421 664,994
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Purchase Price [Roll Forward]      
Options granted, Price per Share (in dollars per share) $ 0 $ 0 $ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding at beginning of year, Wtd. Avg. Exercise Price per Share (in dollars per share) 30.38 29.83 29.08
Options granted, Wtd. Avg. Exercise Price per Share (in dollars per share) 0.00 0.00 0.00
Options exercised, Wtd. Avg. Exercise Price per Share (in dollars per share) 0.00 26.72 18.84
Options canceled, Wtd. Avg. Exercise Price per Share (in dollars per share) 31.58 29.75 21.26
Outstanding at end of year, Wtd. Avg. Exercise Price per Share (in dollars per share) 28.30 30.38 29.83
Exercisable at end of year, Wtd. Avg. Exercise Price per Share (in dollars per share) 28.30 30.38 29.83
Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Purchase Price [Roll Forward]      
Outstanding at beginning of year, Price per Share (in dollars per share) 26 26 18
Options exercised, Price per Share (in dollars per share) 0 26 19
Options canceled, Price per Share (in dollars per share) 26 26 18
Outstanding at end of year, Price per Share (in dollars per share) 26 26 26
Exercisable at end of year, Price per Share (in dollars per share) 26 26 26
Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Purchase Price [Roll Forward]      
Outstanding at beginning of year, Price per Share (in dollars per share) 36 36 36
Options exercised, Price per Share (in dollars per share) 0 27 19
Options canceled, Price per Share (in dollars per share) 36 35 32
Outstanding at end of year, Price per Share (in dollars per share) 34 36 36
Exercisable at end of year, Price per Share (in dollars per share) $ 34 $ 36 $ 36